Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Metal_detector> ?p ?o }
- Metal_detector abstract "A metal detector is an electronic instrument which detects the presence of metal nearby. Metal detectors are useful for finding metal inclusions hidden within objects, or metal objects buried underground. They often consist of a handheld unit with a sensor probe which can be swept over the ground or other objects. If the sensor comes near a piece of metal this is indicated by a changing tone in earphones, or a needle moving on an indicator. Usually the device gives some indication of distance; the closer the metal is, the higher the tone in the earphone or the higher the needle goes. Another common type are stationary \"walk through\" metal detectors used for security screening at access points in prisons, courthouses, and airports to detect concealed metal weapons on a person's body.The simplest form of a metal detector consists of an oscillator producing an alternating current that passes through a coil producing an alternating magnetic field. If a piece of electrically conductive metal is close to the coil, eddy currents will be induced in the metal, and this produces a magnetic field of its own. If another coil is used to measure the magnetic field (acting as a magnetometer), the change in the magnetic field due to the metallic object can be detected.The first industrial metal detectors were developed in the 1960s and were used extensively for mineral prospecting and other industrial applications. Uses include de-mining (the detection of land mines), the detection of weapons such as knives and guns (especially in airport security), geophysical prospecting, archaeology and treasure hunting. Metal detectors are also used to detect foreign bodies in food, and in the construction industry to detect steel reinforcing bars in concrete and pipes and wires buried in walls and floors.".
- Metal_detector thumbnail Metal_Detector.jpg?width=300.
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- Metal_detector wikiPageRevisionID "703319500".
- Metal_detector wikiPageWikiLink Aircraft_hijacking.
- Metal_detector wikiPageWikiLink Airport_security.
- Metal_detector wikiPageWikiLink Alexander_Graham_Bell.
- Metal_detector wikiPageWikiLink Allied_invasion_of_Italy.
- Metal_detector wikiPageWikiLink Allied_invasion_of_Sicily.
- Metal_detector wikiPageWikiLink Amplitude_modulation.
- Metal_detector wikiPageWikiLink Anglo-Saxons.
- Metal_detector wikiPageWikiLink Archaeological_Resources_Protection_Act_of_1979.
- Metal_detector wikiPageWikiLink Archaeology.
- Metal_detector wikiPageWikiLink Artifact_(archaeology).
- Metal_detector wikiPageWikiLink Battle_of_the_Little_Bighorn.
- Metal_detector wikiPageWikiLink Battlefield_Restoration_and_Archaeological_Volunteer_Organization.
- Metal_detector wikiPageWikiLink Beachcombing.
- Metal_detector wikiPageWikiLink Bernard_Montgomery.
- Metal_detector wikiPageWikiLink Black_sand.
- Metal_detector wikiPageWikiLink Bona_vacantia.
- Metal_detector wikiPageWikiLink Bullet.
- Metal_detector wikiPageWikiLink Category:1881_introductions.
- Metal_detector wikiPageWikiLink Category:Metal_detecting.
- Metal_detector wikiPageWikiLink Charles_Garrett.
- Metal_detector wikiPageWikiLink Coin.
- Metal_detector wikiPageWikiLink Collette_Hoard.
- Metal_detector wikiPageWikiLink Construction.
- Metal_detector wikiPageWikiLink Conveyor_system.
- Metal_detector wikiPageWikiLink Copper.
- Metal_detector wikiPageWikiLink Countryside_Stewardship_Scheme.
- Metal_detector wikiPageWikiLink Cover_meter.
- Metal_detector wikiPageWikiLink Crosby_Garrett_Helmet.
- Metal_detector wikiPageWikiLink DEMIRA.
- Metal_detector wikiPageWikiLink Demining.
- Metal_detector wikiPageWikiLink Eddy_current.
- Metal_detector wikiPageWikiLink Electronic_musical_instrument.
- Metal_detector wikiPageWikiLink Electronic_oscillator.
- Metal_detector wikiPageWikiLink England_and_Wales.
- Metal_detector wikiPageWikiLink Fife.
- Metal_detector wikiPageWikiLink File:SD2100.jpg.
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- Metal_detector wikiPageWikiLink Geophysics.
- Metal_detector wikiPageWikiLink Gerhard_Fisher.
- Metal_detector wikiPageWikiLink Global_Positioning_System.
- Metal_detector wikiPageWikiLink Gold.
- Metal_detector wikiPageWikiLink Gustave_Trouvé.
- Metal_detector wikiPageWikiLink Induction_loop.
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- Metal_detector wikiPageWikiLink Invasion_of_Normandy.
- Metal_detector wikiPageWikiLink James_A._Garfield.
- Metal_detector wikiPageWikiLink Jewellery.
- Metal_detector wikiPageWikiLink Józef_Kosacki.
- Metal_detector wikiPageWikiLink Land_mine.
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- Metal_detector wikiPageWikiLink Magnetic_field.
- Metal_detector wikiPageWikiLink Magnetometer.
- Metal_detector wikiPageWikiLink Mars,_Incorporated.
- Metal_detector wikiPageWikiLink Mars_(chocolate_bar).
- Metal_detector wikiPageWikiLink Metal.
- Metal_detector wikiPageWikiLink Milton_Keynes_Hoard.
- Metal_detector wikiPageWikiLink Montpelier_Archeology_Project.
- Metal_detector wikiPageWikiLink Newark_Torc.
- Metal_detector wikiPageWikiLink Outokumpu.
- Metal_detector wikiPageWikiLink Petersburg_National_Battlefield.
- Metal_detector wikiPageWikiLink Phase_response.
- Metal_detector wikiPageWikiLink Polish_mine_detector.
- Metal_detector wikiPageWikiLink Portable_Antiquities_Scheme.
- Metal_detector wikiPageWikiLink Prospecting.
- Metal_detector wikiPageWikiLink Rapiscan_Systems.
- Metal_detector wikiPageWikiLink Rebar.
- Metal_detector wikiPageWikiLink Ringlemere_Cup.
- Metal_detector wikiPageWikiLink Scheduled_monument.
- Metal_detector wikiPageWikiLink Scotland.
- Metal_detector wikiPageWikiLink Second_Battle_of_El_Alamein.
- Metal_detector wikiPageWikiLink Silver.
- Metal_detector wikiPageWikiLink Site_of_Special_Scientific_Interest.
- Metal_detector wikiPageWikiLink Slack_Farm.
- Metal_detector wikiPageWikiLink St_Andrews.
- Metal_detector wikiPageWikiLink Staffordshire_Hoard.
- Metal_detector wikiPageWikiLink Stirling_torcs.
- Metal_detector wikiPageWikiLink Tennessee_Valley_Authority.
- Metal_detector wikiPageWikiLink Transmitter.
- Metal_detector wikiPageWikiLink Treasure.
- Metal_detector wikiPageWikiLink Treasure_hunting.
- Metal_detector wikiPageWikiLink UK_Detector_Finds_Database.
- Metal_detector wikiPageWikiLink United_States.
- Metal_detector wikiPageWikiLink West_Bagborough_Hoard.
- Metal_detector wikiPageWikiLink World_War_II.
- Metal_detector wikiPageWikiLink File:B020311e_-_PFC_Generett_and_SGT_Rutledge_probe_in_yard_of_house.png.
- Metal_detector wikiPageWikiLink File:Berlin_Schönefeld_Airport_metal_detectors.jpg.
- Metal_detector wikiPageWikiLink File:Metal_Detector.jpg.
- Metal_detector wikiPageWikiLink File:Metal_detector_from_World_War_1.jpg.
- Metal_detector wikiPageWikiLink File:Stringer156_nugget.jpg.
- Metal_detector wikiPageWikiLinkText "Garrett Metal Detectors".
- Metal_detector wikiPageWikiLinkText "Metal Detecting".
- Metal_detector wikiPageWikiLinkText "Metal Detectors".
- Metal_detector wikiPageWikiLinkText "Metal detecting".
- Metal_detector wikiPageWikiLinkText "Metal detector".